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HistoryDec 07, 2023 - 10:45 p.m.

Security Bulletin: IBM Dynamic System Analysis (DSA) Preboot is affected by vulnerabilities in cURL (CVE-2018-16840 CVE-2018-16842)

2023-12-0722:45:02
www.ibm.com
10
ibm dsa preboot
curl vulnerability
cve-2018-16840
cve-2018-16842
denial of service
sensitive information
firmware fix

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.015 Low

EPSS

Percentile

86.9%

Summary

IBM Dynamic System Analysis (DSA) Preboot has addressed the following vulnerabilities in cURL.

Vulnerability Details

CVEID: CVE-2018-16840 DESCRIPTION: cURL is vulnerable to a denial of service, caused by a heap use-after-free flaw in the Curl_close function. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/152299&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2018-16842 DESCRIPTION: cURL could allow a remote attacker to obtain sensitive information, caused by a heap-based buffer over-read in the display function in the command line tool. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service condition.
CVSS Base Score: 6.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/152300&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

Affected Products and Versions

Product

|

Affected Version

—|—

IBM Dynamic System Analysis (DSA) Preboot

|

9.6

Remediation/Fixes

Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

Product

|

Fix Version

—|—

IBM Dynamic System Analysis (DSA) Preboot
(ibm_fw_dsa_dsyte2z-9.65_anyos_32-64)

|

dsyte2z-9.65

Workarounds and Mitigations

None

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.015 Low

EPSS

Percentile

86.9%